Make Document::nodeChildrenWillBeRemoved() take a reference

Source/core/dom/Range.h

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Gunnstein Lye (gunnstein@netcom.no)
  * (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
  * (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 111 matching lines @@
     // Not transform-friendly
     void textRects(Vector<IntRect>&, bool useSelectionHeight = false, RangeInFixedPosition* = 0) const;
     IntRect boundingBox() const;
 
     // Transform-friendly
     void textQuads(Vector<FloatQuad>&, bool useSelectionHeight = false, RangeInFixedPosition* = 0) const;
     void getBorderAndTextQuads(Vector<FloatQuad>&) const;
     FloatRect boundingRect() const;
 
     void nodeChildrenChanged(ContainerNode*);
-    void nodeChildrenWillBeRemoved(ContainerNode*);
+    void nodeChildrenWillBeRemoved(ContainerNode&);
     void nodeWillBeRemoved(Node&);
 
     void didInsertText(Node*, unsigned offset, unsigned length);
     void didRemoveText(Node*, unsigned offset, unsigned length);
     void didMergeTextNodes(NodeWithIndex& oldNode, unsigned offset);
     void didSplitTextNode(Text* oldNode);
 
     // Expand range to a unit (word or sentence or block or document) boundary.
     // Please refer to https://bugs.webkit.org/show_bug.cgi?id=27632 comment #5
     // for details.
@@ skipping 35 matching lines @@
 bool areRangesEqual(const Range*, const Range*);
 
 } // namespace
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::Range*);
 #endif
 
 #endif